폴리머 계열 방음패널의 차음특성 비교 분석
It is widely known that the sound insulation of soundproof panel is highly correlated to two factors, surface density of material and the frequency of noise. Accordingly, the character of traffic noise released in actual situation is important requisite for determining thickness to determine surface...
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| Published in | Daehan hwan'gyeong gonghag hoeji Vol. 35; no. 8; pp. 592 - 597 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Korean |
| Published |
대한환경공학회
2013
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1225-5025 2383-7810 |
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| Abstract | It is widely known that the sound insulation of soundproof panel is highly correlated to two factors, surface density of material and the frequency of noise. Accordingly, the character of traffic noise released in actual situation is important requisite for determining thickness to determine surface density and material of soundproof panel. This present study selected polymer panel with advantage of light weight and workability and evaluates according to frequency of traffic noise. Polypropylene (PP) and high-density polyethylene (HDPE) were selected as subjects based on economic valuation and efficiency. The sound transmission loss of selected polymer panels were compared with the currently used panels such as polycarbonate (PC) and polymethyl methacrylate (PMMA) depending on thickness and materials. As a result, PC showed the highest sound transmission loss followed by PMMA, HDPE, and PP in range of mass law. In terms of acoustic performance on thickness, the transmission loss increased with thickness of soundproof panel meanwhile coincidence dip was observed in lower frequency where had reduced transmission loss. Therefore, it is suggested that after determining target frequency, the kind of materials and thickness of soundproof panel need to be designed so that traffic noise can be more efficiently reduced. 방음패널의 차음특성은 재료의 면밀도와 소음의 주파수와 높은 상관관계가 있으므로 방음패널의 두께 및 재료의 선택에 있어 실제 도로소음의 특성을 반영하는 것은 매우 중요하다. 본 연구에서는 재료의 경량 및 시공측면에서 수요가 증가하고 있는 플라스틱 소재 중 방음패널로 활용 가능한 소재를 선정하여 도로교통 소음의 주파수에 따른 차음특성을 평가하였다. 대상 패널은 물리적 특성을 조사하여 효율성 및 경제성 평가를 통해 polypropylene (PP)과 high-density polyethylene (HDPE)를 선정하였고 현재 방음패널의 재료로 사용되고 있는 polycarbonate (PC)와 polymethyl methacrylate (PMMA)와의 재료 및 두께에 따른 차음특성을 비교하였다. 그 결과 방음패널의 차음특성은 재료의 면밀도에 비례하여 PC, PMMA, HDPE, 그리고 PP순으로 높은 투과손실치를 나타내었다. 두께별 차음특성의 경우, 방음패널 두께에 비례하여 투과손실이 증가하나 일치효과로 인해 투과손실이 감소하는 주파수가 낮아짐을 확인할 수 있었다. 결론적으로, 저감하고자 하는 소음의 주파수대역을 먼저 파악하고 방음패널의 재질과 두께에 따른 주파수별 차음특성을 파악하여 적용한다면 효과적으로 소음을 저감할 수 있을 것으로 판단된다. |
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| AbstractList | 방음패널의 차음특성은 재료의 면밀도와 소음의 주파수와 높은 상관관계가 있으므로 방음패널의 두께 및 재료의 선택에 있어 실제 도로소음의 특성을 반영하는 것은 매우 중요하다. 본 연구에서는 재료의 경량 및 시공측면에서 수요가 증가하고 있는 플라스틱 소재 중 방음패널로 활용 가능한 소재를 선정하여 도로교통 소음의 주파수에 따른 차음특성을 평가하였다.
대상 패널은 물리적 특성을 조사하여 효율성 및 경제성 평가를 통해 polypropylene (PP)과 high-density polyethylene (HDPE)를선정하였고 현재 방음패널의 재료로 사용되고 있는 polycarbonate (PC)와 polymethyl methacrylate (PMMA)와의 재료 및 두께에따른 차음특성을 비교하였다. 그 결과 방음패널의 차음특성은 재료의 면밀도에 비례하여 PC, PMMA, HDPE, 그리고 PP순으로 높은 투과손실치를 나타내었다. 두께별 차음특성의 경우, 방음패널 두께에 비례하여 투과손실이 증가하나 일치효과로 인해 투과손실이 감소하는 주파수가 낮아짐을 확인할 수 있었다. 결론적으로, 저감하고자 하는 소음의 주파수대역을 먼저 파악하고 방음패널의 재질과 두께에 따른 주파수별 차음특성을 파악하여 적용한다면 효과적으로 소음을 저감할 수 있을 것으로판단된다. It is widely known that the sound insulation of soundproof panel is highly correlated to two factors, surface density of material and the frequency of noise. Accordingly, the character of traffic noise released in actual situation is important requisite for determining thickness to determine surface density and material of soundproof panel. This present study selected polymer panel with advantage of light weight and workability and evaluates according to frequency of traffic noise. Polypropylene (PP) and high-density polyethylene (HDPE) were selected as subjects based on economic valuation and efficiency. The sound transmission loss of selected polymer panels were compared with the currently used panels such as polycarbonate (PC) and polymethyl methacrylate (PMMA)depending on thickness and materials. As a result, PC showed the highest sound transmission loss followed by PMMA, HDPE, and PP in range of mass law. In terms of acoustic performance on thickness, the transmission loss increased with thickness of soundproof panel meanwhile coincidence dip was observed in lower frequency where had reduced transmission loss. Therefore, it is suggested that after determining target frequency, the kind of materials and thickness of soundproof panel need to be designed so that traffic noise can be more efficiently reduced. KCI Citation Count: 0 It is widely known that the sound insulation of soundproof panel is highly correlated to two factors, surface density of material and the frequency of noise. Accordingly, the character of traffic noise released in actual situation is important requisite for determining thickness to determine surface density and material of soundproof panel. This present study selected polymer panel with advantage of light weight and workability and evaluates according to frequency of traffic noise. Polypropylene (PP) and high-density polyethylene (HDPE) were selected as subjects based on economic valuation and efficiency. The sound transmission loss of selected polymer panels were compared with the currently used panels such as polycarbonate (PC) and polymethyl methacrylate (PMMA) depending on thickness and materials. As a result, PC showed the highest sound transmission loss followed by PMMA, HDPE, and PP in range of mass law. In terms of acoustic performance on thickness, the transmission loss increased with thickness of soundproof panel meanwhile coincidence dip was observed in lower frequency where had reduced transmission loss. Therefore, it is suggested that after determining target frequency, the kind of materials and thickness of soundproof panel need to be designed so that traffic noise can be more efficiently reduced. 방음패널의 차음특성은 재료의 면밀도와 소음의 주파수와 높은 상관관계가 있으므로 방음패널의 두께 및 재료의 선택에 있어 실제 도로소음의 특성을 반영하는 것은 매우 중요하다. 본 연구에서는 재료의 경량 및 시공측면에서 수요가 증가하고 있는 플라스틱 소재 중 방음패널로 활용 가능한 소재를 선정하여 도로교통 소음의 주파수에 따른 차음특성을 평가하였다. 대상 패널은 물리적 특성을 조사하여 효율성 및 경제성 평가를 통해 polypropylene (PP)과 high-density polyethylene (HDPE)를 선정하였고 현재 방음패널의 재료로 사용되고 있는 polycarbonate (PC)와 polymethyl methacrylate (PMMA)와의 재료 및 두께에 따른 차음특성을 비교하였다. 그 결과 방음패널의 차음특성은 재료의 면밀도에 비례하여 PC, PMMA, HDPE, 그리고 PP순으로 높은 투과손실치를 나타내었다. 두께별 차음특성의 경우, 방음패널 두께에 비례하여 투과손실이 증가하나 일치효과로 인해 투과손실이 감소하는 주파수가 낮아짐을 확인할 수 있었다. 결론적으로, 저감하고자 하는 소음의 주파수대역을 먼저 파악하고 방음패널의 재질과 두께에 따른 주파수별 차음특성을 파악하여 적용한다면 효과적으로 소음을 저감할 수 있을 것으로 판단된다. |
| Author | 이주행(Ju Haeng Lee) 이우미(Woo Mi Lee) 손진희(Jin Hee Son) 김일호(Il Ho Kim) 박재로(Jae Roh Park) 김광수(Kwang Soo Kim) |
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| Keywords | Soundproof Panel 방음벽 Noise Barrier 방음패널 Sound Insulation Properties 차음특성 Sound Transmission Loss 음향투과손실 |
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| Snippet | It is widely known that the sound insulation of soundproof panel is highly correlated to two factors, surface density of material and the frequency of noise.... 방음패널의 차음특성은 재료의 면밀도와 소음의 주파수와 높은 상관관계가 있으므로 방음패널의 두께 및 재료의 선택에 있어 실제 도로소음의 특성을 반영하는 것은 매우... |
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| Title | 폴리머 계열 방음패널의 차음특성 비교 분석 |
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